A team color or mascot (or tie dye) helps define who a team is. Everybody knows 88 as the "crazy tie-died team" and to change it would only hurt yourselves and you're team's moral because you wouldn't be so well known anymore.
I associate teams more easily with colors than with numbers... and I think many others do too. To change it would only confuse people.
And c'mon! You only 'show up' to an event and you win a spirit award!
Keep the TIE DYE!!!
ByE
erin